DOI: 10.1016/j.marpolbul.2014.11.011
Scopus记录号: 2-s2.0-84961290820
论文题名: Evidence of sewage input to inner shelf sediments in the NE coast of Brazil obtained by molecular markers distribution
作者: Carreira R.S. ; Albergaria-Barbosa A.C.R. ; Arguelho M.L.P.M. ; Garcia C.A.B.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 90, 期: 2018-01-02 起始页码: 312
结束页码: 316
语种: 英语
英文关键词: Coprostanol
; Inner shelf
; NE Brazil
; Sediments
; Sewage contamination
Scopus关键词: Catchments
; Organic compounds
; Rivers
; Sediments
; Continental shelves
; Coprostanol
; Diagnostic ratios
; Inner shelf
; Limit of detection
; Molecular marker
; Sewage contamination
; Surface sediments
; Sewage
; cholestane derivative
; cholestanol
; cholesterol
; coprosterol
; coastal zone
; marine pollution
; pollutant transport
; sewage
; shelf sediment
; steroid
; Article
; Brazil
; coastal waters
; column chromatography
; concentration (parameters)
; geographic distribution
; limit of detection
; limit of quantitation
; mass fragmentography
; sediment
; sediment transport
; sewage
; water analysis
; water contamination
; water quality
; Alagoas
; Brazil
; Sao Francisco River
; Sergipe
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Coprostanol (5β-cholestan-3β-ol) and other fecal steroids were used as markers to trace the input of sewage to the shelf along the coast of Sergipe and Alagoas States, in NE Brazil. Surface sediment samples in shallow regions (<50m depth) on the shelf were collected adjacent to four fluvial systems, whose drainage basins exhibit distinct levels of human influence. Highest coprostanol concentrations were observed in the area under influence of the Sergipe River (58.6±74.6ngg- 1; maximum of 184.1ngg- 1), whereas in the Vaza-Barris (18.9±23.6ngg- 1) and the Piaui/Real (12.3±6.7ngg- 1) rivers the levels of coprostanol were near the method's limit of detection. Nearby the São Francisco River, the largest in the NE Brazil, coprostanol was virtually absent. The findings of the present study, supported by coprostanol-based diagnostic ratios, revealed that, when sanitation is lacking in the coastal region, even a small-sized river like the Sergipe River can effectively contribute to the export of sewage-derived organic matter to the inner continental shelf in the studied region. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86329
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: LABMAM/Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Brazil; Departamento de Química, Universidade Federal de Sergipe, Brazil; Departamento de Oceanografia, Universidade Federal da Bahia, Bahia, Brazil
Recommended Citation:
Carreira R.S.,Albergaria-Barbosa A.C.R.,Arguelho M.L.P.M.,et al. Evidence of sewage input to inner shelf sediments in the NE coast of Brazil obtained by molecular markers distribution[J]. Marine Pollution Bulletin,2015-01-01,90(2018-01-02)